<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <link rel="stylesheet" href="style.css" />
    <title>CSS 导航条</title>
  </head>
  <body>
    <header>
      <nav>
        <ul>
          <li><a href="#">首页</a></li>
          <li><a href="#">产品介绍</a></li>
          <li><a href="#">服务介绍</a></li>
          <li><a href="#">关于我们</a></li>
          <li><a href="#">联系我们</a></li>
          <div class="slider"></div>
        </ul>
      </nav>
    </header>
  </body>
</html>
